Centrifugal lubricator.



No. 683,504 Patented Oct. I, 1901. F. SCHNEIDER.

CENTRIFUGAL LUBRICATUR.

{Application filed Dec. 8. 1900 (No Model.)

UNITED STATES Enron.

PATENT CENTRIFUGAL LUBRICATOR'.

SPECIFICATION forming part of Letters Patent No. 683,504, dated October 1, 1901.

Application filed December 8, 1900. Serial No; 39,216. (No model.)

To all whom, it may concern:

Be it known that I, FRANZ SCHNEIDER, merchant, a subject of the Emperor of Germany, and a resident of Hochst-on-the-Main, in the Empire of Germany, have invented certain new and useful Improvements in Centrifugal Lubricators, of which the following is a speci' fieation.

My invention relates to a lubricator to be applied to a rotating mechanical elem ent and in which the centrifugal force acting upon the body of the lubricant will cause the latter to be fed to the bearing of the rotating element While the latter is in motion.

My invention will be fully understood upon reference to the accompanying drawings, in which Figures 1 and 2 and 3 and 4 represent in axial section two embodiments of my improved lubricator, Figs. 2 and 4 showing the lubricant in the condition in which it stands, under the influence of centrifugal force,when the machine element to which the lubricator is applied is in rotation.

In order that the centrifugal lubricator may attain the objects named, it has the following construction: In acup-shaped holder at, which is screwed to the rotating machine element in the usual manner, is introduced a loosely-fitting reservoir b, filled with oil, and the holder or is then tightly closed by a cover 6. In the position shown in Fig. 1 no oil reaches the oil-channel 01. As soon as the machine element to which the lubricator is applied rotates with a given velocity the introduced reservoir 1), which has a certain amount of play in the holder at, is moved outward under centrifugal force into the position shown in Fig. 2 and oil contained therein is forced against the cover e and is caused to flow through the openings fand reaches the oil-channel d.

Inasmuch as the lubricant in the position shown in Fig. 2 rarefies the air in the space 0, it follows that as soon as the machine element comes to a standstill external atmospheric pressure exerted through the lubricating-channel d again returns the lubricant to the position shown in Fig. 1. Inasmuch as oil-feed increases with the number of revolutions of the machine element to which the lubricator is applied, while the machinery does not require oil in the same proportions, it is necessary to regulate the cross-section of the oil-passages to control the flow of oil. In order to accomplish this result, either the space between the inner diameter of the holder a and the external diameter of the reservoirb may be selected,or else a downwardlymovable cylindrical projection 9 may be suit-,

ably attached to the reservoir b, as shown in Figs. 3 and 4. This projection serves at the same time as a guide for the reservoir. The nearer the diameter of the projection on the reservoir approaches the inner diameter of the oil-passage the more the sectional area of the latter will be restricted and the less the oil will flow for a given number of revolutions of the machine element.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. A centrifugal lubricator comprising a suitable holder to be attached to a rotating machine element, having an attaching-shank with a bore opening into the holder, and a lubricant-reservoir in said holder, closing the bore when at its inward position, movable outwardly in the holder by centrifugal force to cause the lubricant to be automatically expelled, and of smaller dimensions than the holder so as to leave a space between it and the holder through which the lubricant escapes.

2. A centrifugal lubricator consisting of an outer shell closed against the admission of air and having means for securing it in a radial position on the rotating part and conducting lubricant thereto, and an inner shell movable radially in the outer shell, and loose therein so as to leave a lubricant-passage surrounding it.

3. A centrifugal lubricator comprising a tightly-closed holder adapted to be attached to a rotating machine element, and a cupshaped lubricant-reservoir smaller in trans-v verse dimensions than, and outwardly movable in, said holder, with its open end outward, leaving a passage for lubricant between the moving cup-shaped reservoir and the holder.

4. A centrifugal lubricator comprising a tightly-closed holder having an oil-passage formed in the bot-tom thereof, a cup-shaped ICO and outwardly movable in said holder and having a cylindrical projection entering the oil-passage of the holder, serving as a guide for the oil-reservoir.

The foregoing specification signed at Frankfort-on-the-Main this 24th day of November, 1900.

FRANZ SCHNEIDER. Witnesses:

E. ZELLER, JEAN GRUND, CARL GRUND. 

